The Dark War in the Sin Realm and the Dangerous City

The demons resurrected and the gods declined. A city that survived the catastrophe in Sinland, the cruel laws of nature will be staged again. Lu Yueming, an ordinary student, accidentally heard a terrifying legend and was reborn in another world. With the system in hand, can he escape from the realm of crime? Mechas and cold weapons, steel and flesh! The Law of the Dark Forest, Whispers of Cthulhu! Interstellar fighting, rebirth from slaughter! This is a game against death. Time is running out. Is the boy ready to go?